本文選題：顳下頜關(guān)節(jié) + 前伸咬合　； 參考：《口腔醫(yī)學(xué)研究》2017年05期

【摘要】：目的:研究前伸咬合對(duì)可復(fù)性關(guān)節(jié)盤(pán)移位患者顳下頜關(guān)節(jié)振動(dòng)的影響。方法:30例可復(fù)性關(guān)節(jié)盤(pán)前移位者分別作正常開(kāi)閉口運(yùn)動(dòng)(正中頜位開(kāi)始的最大開(kāi)閉口運(yùn)動(dòng))以及前伸開(kāi)閉口運(yùn)動(dòng)(下頜前伸至切對(duì)切開(kāi)始的最大開(kāi)閉口運(yùn)動(dòng)),運(yùn)用關(guān)節(jié)振動(dòng)分析儀收集2種下頜運(yùn)動(dòng)方式下的關(guān)節(jié)振動(dòng)信號(hào),結(jié)合Joint-3D技術(shù)記錄并分析開(kāi)口度、開(kāi)口型的變化,并對(duì)數(shù)據(jù)結(jié)果進(jìn)行統(tǒng)計(jì)分析。結(jié)果:前伸開(kāi)閉口組關(guān)節(jié)振動(dòng)的振動(dòng)總能量TI、頻率小于300Hz的振動(dòng)能量A、頻率大于300Hz的振動(dòng)能量B、峰振幅PA明顯小于正中頜位最大開(kāi)閉口運(yùn)動(dòng)組(P0.01)。2種運(yùn)動(dòng)產(chǎn)生振動(dòng)的峰頻率PF以及頻率大于300Hz的振動(dòng)能量與頻率小于300 Hz的振動(dòng)能量之比B/A沒(méi)有差異。2種運(yùn)動(dòng)方式下,開(kāi)口度無(wú)明顯變化,而37.4%的可復(fù)性關(guān)節(jié)盤(pán)移位患者前伸開(kāi)閉口的下頜偏離中線距離比正常開(kāi)閉口運(yùn)動(dòng)小。結(jié)論:下頜前伸至切對(duì)切可降低可復(fù)性關(guān)節(jié)盤(pán)移位患者的顳下頜關(guān)節(jié)區(qū)振動(dòng)的強(qiáng)度但不改變其頻率特性,部分患者可以改善開(kāi)口型。本研究從定量化的角度為調(diào)整下頜前伸的再定位咬合板治療可復(fù)性關(guān)節(jié)盤(pán)移位的可行性及有效性提供了佐證。
[Abstract]:Objective: to study the effect of anterior extension and occlusal on the vibration of temporomandibular joint (TMJ) in patients with reducible disc displacement.Methods 30 cases of reducible anterior disc displacement were performed normal opening and closing movement (the largest opening and closing movement beginning in the median jaw position) and anterior extension and closing movement (the maximal open and closed movement of mandible extending to the beginning of the tangential incision).The vibration signals of two mandibular movement modes were collected by using the joint vibration analyzer.The change of opening degree and opening type are recorded and analyzed with Joint-3D technology, and the data results are statistically analyzed.Results: the total vibration energy of joint vibration in front extension and closed mouth group was t I, the frequency was less than that of 300Hz A, the frequency was larger than that of 300Hz B, and the peak amplitude PA was obviously lower than that of the group of maximal opening and closing movement in the median position (P 0.01).The peak frequency of PF and the ratio of vibrational energy of frequency greater than 300Hz to those of frequency less than 300Hz have no difference between B / A and B / A. 2 modes of motion.There was no significant change in the degree of opening, but the distance of mandible deviation from the midline of 37.4% of the patients with reducible disc displacement was smaller than that of the normal movement of opening and closing.Conclusion: the extension of mandibular anterior incisor can reduce the vibration intensity of temporomandibular joint in patients with disc displacement, and some patients can improve the opening type.This study provides evidence for the feasibility and effectiveness of repositioning occlusal plate in the treatment of reducible disc displacement from the point of view of quantification.
【作者單位】： 南京醫(yī)科大學(xué)口腔疾病研究江蘇省重點(diǎn)實(shí)驗(yàn)室南京醫(yī)科大學(xué)附屬口腔醫(yī)院綜合科顳下頜關(guān)節(jié)&口頜面疼痛研究中心;南京醫(yī)科大學(xué)口腔疾病研究江蘇省重點(diǎn)實(shí)驗(yàn)室南京醫(yī)科大學(xué)附屬口腔醫(yī)院口腔頜面外科;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(編號(hào):81500903)
【分類(lèi)號(hào)】：R782.6

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